A cold metal bar at 80 C is submerged in a pool maintained

Last updated: 7/7/2023

A cold metal bar at 80 C is submerged in a pool maintained at a temperature of 40 C After 55 seconds the temperature of the bar is 20 C How long will it take for the bar to attain a temperature of 30 C Use decimal notation Give your answer to one decimal place Round any intermediate calculations if needed to no less than four decimal places t seconds